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A stack of three brownies with a crisp, papery crust and the deepest, darkest gooey centre.
5 from 6 votes

One Bowl Cocoa Brownies

The easiest everyday cocoa brownies, made in one bowl with one spoon to keep the washing up to a minimum.
Servings: 16 brownies
Prep Time5 mins
25 mins


  • 115 g butter - melted
  • 210 g light soft brown sugar - or dark
  • 1 large egg
  • 1 tsp vanilla extract
  • 45 g cocoa powder
  • 55 g plain flour - or self raising
  • 1 tsp baking powder - leave it out if you use SR flour
  • 1 pinch salt - optional, if using unsalted butter

Optional Extras

  • 1 cup chocolate chips / nuts / dried fruit


  • Preheat your oven to 180°C / 160°C Fan / Gas 4 and line and grease an 8" / 20 cm square baking tin. Put the butter into a large bowl or jug. Melt it in the microwave in 10 seconds bursts. Continue until the butter is melted but not hot.
    115 g butter
  • Add the soft brown sugar to the jug and stir it in.
    210 g light soft brown sugar
  • Beat in the egg and vanilla.
    1 large egg, 1 tsp vanilla extract
  • Sift the cocoa into the mix. Then add the flour, together with the baking powder and salt (if using). Fold in and mix until you have a thick glossy batter.
    45 g cocoa powder, 55 g plain flour, 1 tsp baking powder, 1 pinch salt
  • Then add the flour, together with the baking powder and salt (if using). Fold in and mix until you have a thick glossy batter. (You can then add any additions like chocolate chips or nuts, reserving some to sprinkle over the top of the batter in the baking tray.)
    1 cup chocolate chips / nuts / dried fruit
  • Pour the batter into the prepared baking pan. Give it a gentle shake to level it out.
  • Bake for 25–28* minutes, until the brownies are set at the edges (which will have risen and become slightly wrinkled). There will be a shiny papery crust on top. The middle should be soft and still slightly wobbly.
    *If you don't have a fan oven you may need to turn the pan half way through cooking if your oven has hot spots. Do this as quickly and as gently as you can.
  • Stand the tin on a wire rack and allow to cool for 10–15 minutes to firm up (the centre will continue to cook in the residual heat). Then gently lift out of the pan and cut into 16 squares (4 x 4 pattern).


  • Store for up to 5 days. I find the best way is to wrap your brownies in the baking parchment you used for baking, before sealing them in an airtight tin. For that just baked taste pop into the microwave for 10 seconds to warm up and restore that delicious fudge centre.
  • You can also wrap well and freeze for 3 months, but we never had any left over after a few days.
  • For the a delicious brownie dessert, try serving the warmed brownies with ice cream.
  • To double the recipe – use a 13 x 9" baking pan. The brownies will be a bit thicker and take slightly longer to cook.
  • This recipe has proportionally more fat in it compared to many bakes. Take time to stir the dry ingredients in properly to prevent any separation.
  • Use proper butter!
  • Good quality vanilla extract makes a massive difference. Vanilla extract contains real vanilla, while essence is often synthetically made and contains little or no actual vanilla.
Nutritional Information
  • This recipe is 7 Weight Watchers Smart Points
• Please note that the nutrition information provided below is approximate and meant as a guideline only.
• Unless stated otherwise cup conversions have been made with an online tool. For accuracy please check with your favoured conversion tool. We recommend buying inexpensive digital kitchen scales.
Calories: 150kcal | Carbohydrates: 22g | Protein: 2g | Fat: 6g | Saturated Fat: 4g | Trans Fat: 1g | Cholesterol: 35mg | Sodium: 62mg | Potassium: 56mg | Fiber: 1g | Sugar: 14g | Vitamin A: 202IU | Calcium: 24mg | Iron: 1mg