Easy "No Measure" S'mores Bars
Ingredients:
-
cooking spray
-
¾ cup butter, melted
-
2 individual packages graham crackers, crushed
-
½ (12 ounce) bag chocolate chips, or more to taste
-
½ (12 ounce) package butterscotch chips
-
½ (10.5 ounce) package miniature marshmallows
-
½ (14 ounce) can sweetened condensed milk, or more to taste