INGREDIENTS
1/2 cup
unsalted butter, cold
1
pouch (1 lb 1.5 oz) Betty Crocker oatmeal cookie mix (see below for homemade recipe)
1
large egg
1 can
sweetened condensed milk
2 tbsp
lemon zest (about 2 large lemons)
1/4 cup
lemon juice (about 2 large lemons)