2 c all-purpose flour
1 tsp baking soda
1 tsp baking powder
1 tsp kosher salt
1 c unsalted butter, softened
¾ c sugar
¾ c dark brown sugar, firmly packed
2 large eggs
2 tsp vanilla
Mix well.
Stir in, in order:
3 c oats (quick, but not instant)
1½ – 2 c raisins, peanuts, craisins, sesame seeds, chopped dates, etc
2.3 oz wet weight makes a good sized cookie and cooks in about 25 minutes.
Cook at 350 °F for 25 minutes.