Homemade Brownies in a Jar Mix - My Favourite Recipe (2024)

Homemade Brownies in a Jar Mix - My Favourite Recipe (1)


This is my favourite brownies in a jar recipe. It makes amazingly rich and chocolatey brownies with a divine gooey middle. They never last long out of the oven!

Most people love chocolate and it's hard to go wrong gifting a jar of brownie mix! These jars are quick and easy to assemble, and great to give at Christmas or as teacher-appreciation gifts (and do keep a jar for yourself too!!).

In the immortal words of Linda Greyson,

"There's nothing better than a good friend,
except a good friend with chocolate."

Brownies in a Jar: 500g version

Since having my son I've attended a lovely Mothers' group. Each week we get together and do craft or cooking while the little ones are in creche. This week we're making Brownies in a Jar for everyone to take home, so I thought I'd share the recipe here too.

I've adapted a recipe to fit a smaller 500g jar, and I'm also sharing the sheet of labels for printing out (great if you want to make several jars!). I live in the UK so all the measurements are in metric, but hopefully they'll still be useful to some of our readers :)


If you want a bigger version, look down the page for our 1 quart jar instructions.

Jar Assembly

Into a clean 500g glass jar layer:

  • 20g plain flour
  • 30g cocoa powder
  • 250g sugar, either white or brown works, or use a combination of both (this works really well if you want to add more colored layers)
  • 125g chocolate cut into pieces (or use chocolate chips)

I usuallysplit the sugar and cocoa into separate layersso that there are more layers.

Then place all the chocolate at the top of the jar. As it's chunky, the finer ingredients will trickle through if you place it further down and it won't look as pretty.

Jar Labels

Now you've got your filled jars, you need to add a label with the baking instructions. Here are the labels we used at our Mothers' group. As Christmas is approaching I've made one label with a Christmas paper background, and the other I've used a sweet spring rose pattern, so hopefully more versatile for all year around gifts.

Print the labels onto thick paper or card-stock (I'm using 160gsm) or you can even use matte photo paper. These printables are for personal, non-commercial use only. Cut out the labels and attach to the front and lid of your jar using double-sided tape. Leave as is or embellish with a ribbon.

Download Jar LabelsDownload Lid Labels

Baking Instructions

As we're using 500g jars, the batch of brownies you make will be a modest size. Your recipient will need to use a lined 1lb loaf tin or other small baking tin rather than the usual square brownies tin.

To make, pour contents of the jar into a mixing bowl. Add 125g melted butter, 1tsp vanilla essence, and 2 eggs lightly beaten. (Optional: add a cup of chopped nuts). Mix to combine and pour into the tin. Bake at 160 degrees/Gas 3 for 40 minutes or so.

So simple, and they are *delicious*. Enjoy!

How to make Brownies in a Jar: 1 quart jar

This recipe is the same as the one for mydecadent brownies, but scaled down so that the ingredients fit perfectly into a 1 quart jar.

Ingredients(to fill a 1 quart/1L jar)

  • 1 1/2 cups (300g) brown sugar, firmly packed
  • 3/4 cup (90g) plain flour
  • 3/4 cup (90g) cocoa powder (unsweetened)
  • 3/4 cup (80g) chopped walnuts
  • 1/2 cup (approximately 60g) chocolate chips or chunks

Variations:Replace the walnuts with other nuts like almonds or pecans, or use a combination. You could also add raisins to the mix.

Method for Preparing Brownies in a Jar MixHomemade Brownies in a Jar Mix - My Favourite Recipe (6)

  1. Measure out the ingredients separately.
  2. Layer ingredients into your jar, putting finer ingredients towards the bottom.

Here I have put cocoa, flour, brown sugar, walnuts, and chocolate. I think it would work even better breaking up the sugar layer. Have fun experimenting!

Just remember that the finer ingredients will fall through the gaps of the chunkier ingredients. That's why I always put the chunkier ingredients towards the top of the jar.

Storage: so long as the jar is air-tight, the brownie mix will last as long as any of the individual ingredients (just look on the packaging), which is normally a couple of months.


Instructions for RecipientHomemade Brownies in a Jar Mix - My Favourite Recipe (7)

  1. Preheat oven to 320°F (160°C). Line a 7x11" (18x28cm) baking tin with baking paper.
  2. Empty out jar contents into a bowl and mix together thoroughly.
  3. Mix in 3 eggs (lightly beaten) and 1 cup (225g) of softened butter.
  4. Spread onto baking tray and bake for 30-35 minutes. The result is a cake-like crust, and moist and gooey center!

  5. Yield: 24 decadent chocolate brownies.

Write out the instructions above and attach them to your gift.

What next?

How did your brownies in a jar turn out? I hope you baked a batch for yourself too! If you're a chocolate addict (come on, admit it), make sure you also try my choc-chip-bliss cookies. You'll find the recipe on mycookie recipes in a jar page.

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Homemade Brownies in a Jar Mix - My Favourite Recipe (2024)

FAQs

How long can you keep brownies in a jar? ›

Brownies will last 3 to 4 days in an airtight container at room temperature and up to a week in the refrigerator. Brownies will last up to 3 months in the freezer, but if they stay frozen for a prolonged period of time, their taste and quality will begin to deteriorate.

Is it cheaper to buy brownie mix or make from scratch? ›

A clever hybrid between cake and cookie, brownies are a dense, chocolaty bar cookie baked in a rectangular pan; they can be fudge-like, cake-like, or anything in between. It was about three times more expensive to make the brownies from scratch than to use a mix, owing mostly to the cost of chocolate and walnuts.

How to make store-bought brownie mix better? ›

Add a teaspoon of instant coffee or espresso powder. Throw in a handful of nuts—pecans, walnuts, macadamia, whatever you have on hand. Scoop in a palmful of dried or frozen fruit. Add an extra splash of the top-shelf vanilla extract, or a dab of vanilla paste, or a dash of vanilla powder, to the batter.

What happens if you use milk instead of water in brownie mix? ›

One change is to use milk or heavy cream instead of water. This change will make brownies more moist and gooey since milk is more fatty and flavorful than water. A second change is to use butter instead of oil. For similar reasons to using milk, butter adds a rich and more decadent quality to the batter.

Can I eat 2 week old brownies? ›

Wrapped brownies can be stored at room temperature or in the refrigerator and should be consumed within 1-2 days before they become dry and stale.

How do you know if brownies have gone bad? ›

There are a few ways to tell if brownies aren't good anymore. They may be stale, smell like dirt, or have white-looking flour on top. The second two are indications of mold. It's better to throw them away if you're concerned that they may be moldy.

What happens when you add an extra egg to brownie mix? ›

They give brownies a lighter, drier, and more cake-like texture. If you prefer this over the chewy variety, then go ahead and crack in that additional egg. On the other hand, too many eggs will yield brownies that are hard, heavy, and tough.

Is it better to make brownies with butter or oil? ›

Note that while some brownie recipes do call for melted butter instead of oil, the butter can aerate the batter, altering the texture of the brownies and making them cakey rather than fudgy. So, while you can substitute butter for oil and vice versa, remember that it might alter the texture.

What does adding coffee to brownies do? ›

Adding coffee to your brownies boosts their flavor because its bitter quality balances out sweetness, making it less overpowering. It allows that delicious chocolate flavor to really shine. You can also switch out the water called for in the batter with brewed coffee.

Can I add coffee instead of water to brownie mix? ›

If you already have a favorite brownie recipe, try adding one to two tablespoons of instant espresso in with the wet ingredients. If you're making brownies from a boxed mix, you can substitute brewed coffee for the water, or simply add espresso powder in with the dry ingredients.

How long do brownies last in an airtight container? ›

Uncut brownies that are carefully sealed with plastic wrap, aluminum foil, or another airtight container will stay fresh for up to 4 days at room temperature, up to a week in the fridge, and up to a month in the freezer.

How do you store brownies long term? ›

Brownies should be wrapped tightly in plastic wrap, and placed in an airtight container to help keep them from drying out and going stale. (You can also use a layer of aluminum foil around the layer of plastic wrap to help protect them from air exposure.)

How far in advance can you make brownies? ›

Nigella's classic Brownies (from HOW TO BE A DOMESTIC GODDESS) are moist and squidgy and should keep well in an airtight container for up to 5 days. However, if you are making them for a special event, such as a bake sale, then you may prefer to make them 1-2 days ahead to be sure that they are at their very best.

How long is brownie mix good for after the expiration date? ›

Baking condiments like baking powder, 6 months unopened and 3 months after opening; cakes, brownies and bread mixes, 12-18 months unopened and follow the package used by date after opening. For a variety of foods, including meat and poultry, see Shelf Stable Food Safety.

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