In the process of baking some butter cookies using the following recipe, I mistakenly added 1/2 cup flour more than what the recipe calls for, and it is now mixed with other ingredients (in a food processor). This happened 3 days ago and I have the semi-batter in an airtight container on the counter since then. I'd like to know if there is any way to save the ingredients. I think I could double the recipe but not sure how it will turn out considering the 48+ hours that it lived in the kitchen. Here's the recipe:
100gr butter
2/3 cup powdered sugar
1/8 tsp vanilla powder
3 egg yolks
2 cups flour