1 (15 oz.) can sweetened condensed milk
1/2 c. lemon juice
1 tsp. lemon extract
1/2 c. butter
1 c. brown sugar
1/2 tsp. salt
1 c. uncooked oatmeal
1 1/2 c. sifted flour
1 tsp. baking powder

Mix together milk, lemon juice, and lemon extract and let stand while preparing the other ingredients. Cream together butter and sugar and add remaining ingredients. Put part of this on bottom layer, then add lemon filling. Put rest of crumb mixture on top. Bake at 350 degrees in a 9 x 9 inch square pan for 25 minutes. Cut into squares.