mix-ins for brownieschoose 2 or 3: 1/4 cup chopped walnuts, chocolate chips, M&Ms; 2 teaspoons instant coffee or espresso powder; 1/4 teaspoon cinnamon
Preheat the oven to 350. Grease an 8-inch square pan or line it with parchment paper.
Place the oil, eggs, and vanilla extract in a large mixing bowl and stir to blend. Add the sugar, flour, cocoa, baking powder, and salt to the wet mixture. Stir gently to combine. Fold in mix-ins, if using. Spoon the batter into the prepared baking pan.
Bake until a tester comes out with few crumbs attached, about 25 to 30 minutes. Cool. Cut into squares. Brownies can be wrapped in plastic wrap and stored in a ziptop freezer bag in the freezer for up to 2 months. or layered between waxed paper in an airtight container.
If preparing this as a mix, mark a quart-size ziptop bag with the wet ingredients and baking instructions. Combine the dry ingredients in a bag and seal. Store in the pantry until ready to use. Store the mix in the freezer for longer shelf life.
To make as a mix: Take a large ziptop bag or container and label it with the wet ingredients and the baking instructions. Measure out the dry ingredients into the bag. Seal and store until ready to use.