Can I Double Up the Ingredients in a Brownie?

If you want more height, i would just add another, maybe half of the ingredients. So do one and a half times the ingredient er. Because if you hadd the baking powder, it will be a bit more caky. But yes, you can freeze hem. It's well, they freeze really well. So call them down, wrap them really well in some baking parchment em and you can freeze them for a couple of months. That's so good. Em.