1-Step 1: Line a 9×13 inch baking pan with parchment paper, leaving an overhang for easy removal later.

2-Step 2: In a bowl, whisk together the flour, baking soda, ginger, cinnamon, allspice, cloves, nutmeg, black pepper, and salt until everything is well combined.

3-Step 3: In a separate bowl, whisk the melted butter, brown sugar, granulated sugar, and molasses until smooth, then mix in the egg and vanilla extract thoroughly.

4-Step 4: Combine the wet ingredients with the dry mixture, stirring until no flour traces remain to create a uniform dough.

5-Step 5: Press the dough evenly into the prepared pan; it might seem thin at first, but it will rise nicely during baking.

6-Step 6: Bake for 23 to 26 minutes until the top is set but still soft a toothpick inserted should come out mostly clean.

7-Step 7: Let the bars cool in the pan for at least 1 hour before moving on to frosting.

8-For the spiced cream cheese frosting: beat the softened cream cheese and butter together until smooth. Gradually add the confectioners’ sugar, spices, and vanilla extract, beating until creamy; adjust with a pinch of salt if needed. Spread the frosting over the cooled bars, add sprinkles if you like, refrigerate for 30 minutes to set, and then lift the bars from the pan using the parchment overhang to cut into squares. This method, as shared on sites focusing on baking secrets, ensures your treats look and taste amazing.