Preheat oven to 350F; line an 8 by 8-inch baking pan with parchment paper so that it hangs over all 4 sides and you can just lift out the blondies.
Whisk together the brown butter, sugar, egg, vanilla extract, molasses, and almond extract. Stir in the flour, salt, and mahlab, and then fold in the cherries, almonds, and chocolate chips.
Pour the batter into the prepared pan and bake until golden on the outside, but still a touch doughy in the center, about 20 to 23 minutes (be careful not to overbake, as these are best gooey in the center).