Preheat oven to 350 degrees Fahrenheit. Grease an 8 x 11 glass cake pan (or casserole dish ).

For the Topping, combine ingredients and press with a fork or cut butter in with a pastry cutter or use finger tips to combine. Mixture will be crumbly and coarse.

Refrigerate until ready to use.

In a bowl, cream sugar and cream cheese together until smooth. Add egg and lemon juice and mix well.

Set aside or in refrigerator until ready to use.

In a large bowl, mix flour, baking powder, salt and lemon zest well.

In a medium size bowl, beat butter and sugar until creamy. Add eggs one at at time, mixing well after each egg. Fold in lemon juice and mix well.

Slowly incorporate dry ingredients into wet, alternating with milk. Mix just until combined.

Pour half of cake mixture into prepared pan. Add filling mixture in and spread as best you can without pressing down into the cake. Pour remaining cake mixture over the top and spread evenly.

Sprinkle crumb topping mixture on top. Bake 30-35 minutes until top is slightly browned and cake is set. If you want the top a little more brown, place under the broiler for a minute or two but watch it close! Cool and enjoy!