These are totally un-ruinable because they can be made with just about any gluten-free flour, flour mix, or pancake mix. They will have a slightly different consistency depending on the flour, but they work with anything from plain rice flour to Pamela’s pancake mix.
Your celiac friends will appreciate the attempt to make real brownies, rather than those flourless peanut butter cookies or rice krispie treats we ALWAYS get.
Make sure to clean ALL your work surfaces very well first. All counters and bowls should be scrubbed clear of any trace of gluten. Use non-porous materials like Teflon or glass. Make sure they are scrubbed completely clean of every last scrap of anything that ever contained gluten. (Even better, use the excuse to treat yourself to a new dish and new mixing bowl.)
Set oven to 350.
Beat the eggs with the sugar and avocado.
Melt the butter or oil in a saucepan or microwave-safe dish, and add the cocoa powder and beat until smooth.
Allow the butter/cocoa powder mix to cool a bit, then mix into eggs, sugar and avocado.
Mix your flour in with the rest. Add baking powder if you simply have a basic flour mix.
Pour into a greased baking dish and bake for 30-40 minutes on 350.