Step 1

Preheat oven to 350°F.

Step 2

Spray an 8x8 square baking pan with nonstick baking spray, and line it with parchment paper so it hangs over the edge on two sides. (It's like a little hammock you'll bake your bars in so it's easy to get them out of the pan.) Spray parchment with nonstick baking spray.

Step 3

Combine all the dry ingredients (including coconut) in a mixing bowl. Using a pastry cutter, Kitchen Aid mixer (with a paddle attachment), or a food processor, blend in cold butter until it is in pea-sized pieces.

Step 4

Press firmly into the bottom of the pan. Bake for 20 minutes.

Step 5

Using your fingers, rub the lemon zest into the sugar. Then add the remaining filling ingredients (except for the coconut) and whisk together. Pour into the hot crust, and bake for another 10 minutes.

Step 6

Sprinkle coconut on top, then bake again for 10 more minutes or until set.

Step 7

Let bars cool completely, then refrigerate overnight. Cut into 12-16 bars and enjoy!