1-Step 1: Prep the Blondie Base Preheat oven to 350°F. Line a 9×13-inch pan with parchment paper, leaving overhang for handles. In a large bowl, whisk 1 cup brown sugar, 1/2 cup melted butter, 1 egg, and 1 tsp vanilla until smooth. In another bowl, mix 1 cup flour, 1/2 tsp baking powder, and pinch salt. Fold dry into wet until just combined, like brownie batter. Spread evenly in pan. For gluten-free, use certified blend here. Bake 15 minutes until edges set but center soft. Cool 10 minutes. This chewy base holds up the layers in your apple cheesecake bars.

2-Step 2: Make the Cheesecake Layer Lower oven to 325°F if edges browned too fast, but 350°F works. Beat 16 oz softened cream cheese, 1/2 cup sugar, 2 eggs, and 1 tsp vanilla on medium speed 2-3 minutes until creamy, no lumps. Scrape bowl often. For low-cal, sub half cream cheese with Greek yogurt. Pour over warm blondie base. Bake 25-30 minutes: edges firm, center slight jiggle like panna cotta. Turn off oven, crack door, cool 30 minutes inside to prevent cracks. Then room temp 1 hour, fridge 1 hour. Vegan? Use vegan cream cheese and eggs.

3-Step 3: Cook the Apple Topping While cheesecake cools, peel, core, dice 3 Granny Smith apples into 1/2-inch pieces (toss in lemon juice to prevent browning). Medium skillet over medium heat: melt 2 tbsp butter, add apples, 1/4 cup sugar, 1 tsp cinnamon. Stir 8-10 minutes until tender-crisp and syrupy. Cool 15 minutes. Honeycrisp works too for sweeter notes.

4-Step 4: Assemble and Chill Spoon cooled apples evenly over set cheesecake. Drizzle 1/2 cup caramel sauce in zigzags. For no-bake blondie cheesecake vibe, chill without extra bake. Cover loosely, refrigerate 4 hours or overnight for clean slices.

5-Step 5: Serve and Store Lift using parchment, cut into 16-20 bars with sharp knife. Wipe blade between cuts. Serve chilled or room temp. Pair with vanilla ice cream. These gooey caramel apple blondie recipe bars shine at gatherings.