1. Preheat your oven to 350°F (175°C) and line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal.
2. In a medium bowl, whisk together the flour, baking powder, baking soda, salt, and cinnamon. This is your dry mix, and it’s what gives the bars their tender structure.
3. In a large bowl, cream the softened butter and granulated sugar together until light and fluffy, about 3-4 minutes. I remember Mama Lu telling me to listen for the change in sound when the butter’s ready — it’s a soft, almost silky whisper instead of a heavy thump.
4. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract and 1/2 cup of maple syrup.
5. Alternately add the dry ingredients and buttermilk to the butter mixture, beginning and ending with the dry ingredients. Mix gently until just combined. Overmixing is a common mistake that can make these bars dense, so be gentle — like folding in a secret ingredient.
6. Pour the batter into your prepared pan and smooth the top with a spatula. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean and the edges are golden brown.
7. While the bars bake, prepare the maple glaze by whisking the powdered sugar with 1/4 cup of maple syrup until smooth. Adjust the consistency by adding a little more syrup if it’s too thick, or more powdered sugar if too thin.
8. When the bars are done, let them cool in the pan for about 15 minutes, then drizzle the glaze evenly over the top. Once glazed, allow the bars to cool completely before slicing into squares.

A quick tip from my porch swing: don’t rush the cooling stage. Letting the glaze set properly keeps these bars from turning into a sticky mess and makes every bite just right.