Cranberry-Oat Bars

1 cup butter, softened
1 cup brown sugar, packed
2 cups quick-cooking oats, uncooked
1 and 1/2 cups plus 2 Tablespoons all-purpose flour, divided
1 teaspoon baking soda
2 cups sweetened, dried cranberries
1 cup sour cream
3/4 cup sugar
1 Tablespoon lemon zest
1 and 1/2 teaspoon vanilla extract
1 egg
1/2 teaspoon cinnamon

Combine butter, brown sugar; stir in oats, 1 and 1/2 cups flour and baking soda until crumbly. Press half the mixture into an ungreased 9 x 13 baking pan, setting remaining half aside. Bake at 350 degrees until golden, about 10 or 12 minutes. Mix remaining ingredients together; spread over crust. Sprinkle reserved oat mixture on top; bake 25 to 30 additional minutes. Cool completely. Slice into bars to serve. Makes 3 dozen.