1-Preheat oven: Set oven temperature to 350°F (175°C). Prepare an 8×8-inch baking pan by greasing or lining it with parchment paper to prevent sticking.

2-Mix dry ingredients: Combine the flour, baking powder, salt, and lemon zest thoroughly in a bowl to form the dry base.

3-Combine wet ingredients: In a separate bowl, whisk together the softened butter, granulated sugar, fresh lemon juice, and fresh raspberries gently to incorporate the fruit without breaking it up too much.

4-Fold batter: Gradually fold the dry mixture into the wet ingredients until just combined, taking care not to overmix to keep the bars tender.

5-Spread batter: Pour the batter into the prepared pan and smooth the top evenly with a spatula.

6-Bake: Bake for 25-30 minutes, until the edges are golden brown and a toothpick inserted in the center comes out clean but with a moist texture.

7-Cool completely: Allow the bars to cool fully in the pan to maintain their shape and crumb texture before glazing.

8-Prepare glaze: Whisk together powdered sugar, seedless raspberry jam, lemon juice, and lemon zest until smooth. Spread evenly over the cooled bars.

9-Set glaze: Let the glaze set for at least 20 minutes before slicing into squares.