These cacao brownies use 135 g of whole cacao paste in place of cocoa powder, with only 75 g of butter, because the paste carries roughly half its own weight in cacao butter. They take 15 minutes to mix, 25 minutes to bake at 325°F (165°C), and 2 hours of cooling before cutting. The crumb is denser and glossier than a powder brownie, with a cleaner cacao flavor.
What makes this different
Cocoa powder is what remains after roughly three quarters of the cacao butter is pressed out of the bean, leaving it at 10 to 15 percent fat. Whole paste keeps all of it, around 50 to 55 percent. USDA puts unsweetened baking chocolate, the same whole bean form, at 52.3 g of fat per 100 g (USDA FoodData Central).
That gap is the whole recipe. Fat coats flour proteins and limits gluten development, which is what separates a dense fudgy square from a dry cakey one. A powder recipe borrows all of that fat from butter. A paste recipe gets most of it from the cacao, so you halve the butter and the brownie still sets up dense, and you taste cacao rather than butter.
The rule travels: use roughly 1.8 times as much paste by weight as the cocoa powder a recipe calls for, then cut the added fat substantially.
Ingredients
Makes 16 squares in an 8 inch (20 cm) square pan.
- 135 g whole cacao paste (about 1 cup of small pieces)
- 75 g unsalted butter (5 tbsp plus 1 tsp), cubed
- 30 ml hot water (2 tbsp)
- 250 g sugar (1 1/4 cups), white or light unrefined
- 2 large eggs, at room temperature
- 1 tsp vanilla extract
- 70 g all purpose flour (1/2 cup plus 1 tbsp)
- 3/4 tsp fine sea salt
Method
Read the first step twice. It is where nearly every whole paste recipe goes wrong.
- Melt the paste with a splash of hot water first. Put the paste and the 30 ml of hot water in a heatproof bowl over barely simmering water and stir until completely fluid and smooth. Paste dropped straight into hot fat is what produces a grainy separated batter.
- Add the butter off the direct heat. Stir the cubed butter into the smooth cacao until it disappears, then lift the bowl off the pan.
- Beat in the sugar while the mixture is still warm. Stir hard for a full minute. Warm mixture plus hard stirring gives brownies their thin crackly top.
- Add the eggs one at a time. Cool the mixture a few minutes so they do not scramble, then beat each in fully and stir in the vanilla.
- Fold in the flour and salt. Stop as soon as no dry streaks remain. Overmixing builds gluten and turns a fudgy brownie cakey.
- Bake at 325°F (165°C) for 22 to 26 minutes in a parchment lined 8 inch pan, until a toothpick comes out with moist crumbs rather than clean.
- Cool completely before cutting, at least 2 hours. Warm paste brownies fall apart on the knife and firm up considerably as the cacao butter resets.
Tips and variations
A few things worth knowing before the second batch.
- Weigh the paste. Piece size varies, so cup measures drift by 20 g or more, and 20 g matters in a pan this small.
- Salt is not optional. Cacao at 100 percent is genuinely bitter, and salt rounds that off better than extra sugar.
- For a sweeter brownie, go up to 275 g of sugar rather than cutting the paste, which costs you the texture.
- Add-ins up to 100 g: toasted walnuts, flaky salt on top, or half a teaspoon of cinnamon in the melted cacao.
- Dairy free: use 65 g of coconut oil, slightly less than the butter weight since it is nearly pure fat.
- Storage: 4 days covered, 2 weeks refrigerated, 3 months frozen. Chilled brownies firm up a lot, so give them 20 minutes out of the fridge.
Common questions
Can I use cacao powder instead?
Yes, with adjustments. Replace the 135 g of paste with 75 g of cacao or cocoa powder, and raise the butter from 75 g to about 135 g to put back the cacao butter you removed. Skip the water melt and whisk the powder into the melted butter. The result is drier and more butter forward, which is the difference the paste exists to make.
Why did my batter turn grainy?
The melt step, almost always. If it has already seized, take it off the heat, add a tablespoon of hot water and stir hard. It usually comes back.
Do cacao's compounds survive baking, and do they matter?
Partly, and less than the headlines imply. Nobody has measured flavanols in a brownie, but roasting has: Criollo beans from the Amazonas region of Peru lost about 8 percent of their epicatechin at 130°C for 10 minutes, and all of it at 200°C for 50 minutes (Antioxidants, 2020). Brownie batter is far wetter than a roasting bean, so the interior stays near the boiling point of water until it sets, well under those conditions. On benefit, COSMOS, a trial of 21,442 adults, found a 27 percent lower rate of cardiovascular death on 500 mg of cocoa flavanols daily, though its primary endpoint was not statistically significant (Sesso et al., 2022). That used a concentrated extract, not dessert. A brownie is a brownie. The fair claim is only that whole paste is a better starting ingredient, because those compounds sit in the fat powder has lost.
Will these keep me up at night?
Less than coffee would, though they are not inert. Cacao's main stimulant is theobromine, which is fat soluble, peaks 2 to 3 hours after you eat it, and clears slowly, with a reported half life near 7 hours (Resman et al., 1977). Caffeine peaks in 30 to 40 minutes and leaves faster. Unsweetened baking chocolate runs roughly 1,300 mg of theobromine against 80 mg of caffeine per 100 g. If you are sensitive, eat them earlier in the day.
A note on the cacao you use
The form matters more than the label. Alma Cacao is 100 percent whole cacao paste, shaved into small pieces with the cacao butter left in, which is why it melts into the fluid base this recipe needs. It comes only from Peru, from the Amazonas, Piura, San Martin and Cusco regions, where native heirloom and criollo varieties are traditionally fermented. Small batches keep each one traceable, tested by an ISO 17025 accredited lab for lead, cadmium, arsenic and mercury, and processed in a GMP certified facility. The co-op we source from gives 2 percent back to the producer communities who grow the cacao, and we donate another 2 percent of every sale to For the Love of Mateo.
Bake these once and the powder version starts to taste thin. Ours is here when you want it.
