Preheat oven to 350F degrees.
Spray a 9x9in square baking pan (or any similar size, 8×8 is too small) with oil or butter.
In a large bowl or standing mixer, cream together butter and sugars. Once combined, add in the eggs, almond extract, and vanilla extract. Add in the flour, baking soda, sea salt and mix until everything is incorporated.
Press dough into your greased pan. Bake for 45-50 minutes. You want the center done, but still soft.
At 30 minutes, take a piece of aluminum foil and gently fold over the pan. This helps prevent the bars from getting too brown.
Let cool completely. While cooling, prepare the icing.
In a medium mixing bowl, cream the butter until light and fluffy. Add in the powdered sugar, vanilla extract, sea salt, and heavy cream (1 tbsp at a time). Start with 1 tbsp of heavy cream and depending on thickness, add another if needed. Add in food coloring until desired color.
Ice the top of the bars and add sprinkles. To make slicing more clean, refrigerate the bars first for about 30 minutes- 1 hour before cutting. It hardens the icing and makes it easier to cut!