Salted Caramel Apple Crumb Bars

Why You’ll Love This Recipe

• All the flavors of classic apple pie, packaged into easy-to-share, sliceable bars.
• Textural contrast: buttery shortbread, tender cinnamon apples, and a chunky oat crumble.
• Real, glossy salted caramel—made in 10 minutes—drizzled while warm for a bakery finish.
• Make-ahead friendly and sturdy enough for potlucks, bake sales, and holiday trays.

Grocery List

• Produce: 4 medium apples (mix of tart and sweet), 1 lemon
• Dairy: Unsalted butter (3 sticks/339 g), heavy cream (1/2 cup/120 ml)
• Pantry: All-purpose flour, rolled oats, granulated sugar, brown sugar, vanilla extract, cornstarch, flaky sea salt, fine sea salt, ground cinnamon, ground nutmeg

Full Ingredients

Buttery Shortbread Base

• Unsalted butter, softened: 1 cup (226 g)
• Granulated sugar: 1/2 cup (100 g)
• Vanilla extract: 1 tsp
• Fine sea salt: 1/2 tsp
• All-purpose flour: 2 cups (240 g)

Cinnamon Apple Filling

• Apples, peeled, cored, and diced 1/2 inch: 4 medium (about 4 cups/560 g)
• Light brown sugar, packed: 1/3 cup (70 g)
• Lemon juice: 1 tbsp
• Cornstarch: 2 tsp (6 g)
• Ground cinnamon: 1 tsp
• Ground nutmeg: pinch
• Fine sea salt: pinch

Chunky Oat Crumble

• Rolled oats (old-fashioned): 1 cup (100 g)
• All-purpose flour: 3/4 cup (90 g)
• Light brown sugar, packed: 1/2 cup (100 g)
• Ground cinnamon: 1/2 tsp
• Fine sea salt: 1/4 tsp
• Unsalted butter, cold and cubed: 1/2 cup (113 g)
• Optional add-in: chopped pecans or walnuts: 1/2 cup (60 g)

Warm Salted Caramel Drizzle

• Granulated sugar: 1 cup (200 g)
• Unsalted butter, room temp and cubed: 6 tbsp (85 g)
• Heavy cream, room temp: 1/2 cup (120 ml)
• Vanilla extract: 1 tsp
• Flaky sea salt: 1 tsp (plus more to finish)

Step-by-Step Instructions

Step 1: Preheat and Prepare the Pan

Heat the oven to 350°F (177°C). Line an 8-inch (20-cm) square metal baking pan with parchment, leaving a 2-inch overhang on two sides to lift the bars out later. Lightly grease the exposed sides of the pan.

Step 2: Make the Salted Caramel

In a light-colored, heavy saucepan over medium heat, add the granulated sugar in an even layer. Let it melt undisturbed around the edges, then gently stir or swirl to help the remaining sugar liquefy. Continue cooking until the caramel reaches a deep amber color, 5–7 minutes. Off the heat, whisk in the butter (it will bubble vigorously), then slowly whisk in the warm cream until smooth. Stir in vanilla and flaky sea salt. Transfer to a heatproof jar to cool until thick but pourable. If it firms up, rewarm briefly before drizzling.

Step 3: Mix the Buttery Shortbread Base

In a bowl, beat the softened butter with granulated sugar until creamy, 1–2 minutes. Beat in vanilla and fine salt. Add flour and mix on low just until a soft dough forms. Crumble the dough into the prepared pan and press firmly into an even layer. Dock a few times with a fork. Par-bake for 12–14 minutes until the edges look set and just turning pale golden.

Step 4: Toss the Cinnamon Apple Filling

In a large bowl, toss the diced apples with brown sugar, lemon juice, cornstarch, cinnamon, nutmeg, and a pinch of salt until evenly coated. If your apples are very firm, microwave the mixture for 60–90 seconds to jump-start softening; drain off only excessively watery juices if present.

Step 5: Make the Chunky Oat Crumble

In a medium bowl, whisk the oats, flour, brown sugar, cinnamon, and salt. Cut in the cold butter with a pastry cutter or your fingertips until you have a mix of sandy bits and pea-to-almond-sized clumps. For extra crunch, fold in optional nuts.

Step 6: Assemble the Layers

Spread the apple filling evenly over the warm shortbread base, going right to the edges. Sprinkle the crumble evenly on top, gently pressing some clumps together for big, bakery-style nuggets. For a deeper caramel note, you may drizzle 2 tablespoons of the caramel over the apples before adding the crumble (optional).

Step 7: Bake to Golden and Bubbling

Bake for 35–40 minutes, rotating the pan halfway, until the crumble is golden and the apple juices are actively bubbling in the center. If the top browns too quickly, tent loosely with foil for the last 5–10 minutes.

Step 8: Cool, Drizzle, and Slice

Cool the pan on a rack for at least 1 hour to set the layers. Drizzle 1/3–1/2 cup warm salted caramel over the surface in thin ribbons and finish with a pinch of flaky sea salt. Lift out using the parchment sling and cut into 16 bars. Serve with extra caramel on the side.

Pro Tips

• Use a mix of apples: half tart (Granny Smith) and half sweet-crisp (Honeycrisp or Pink Lady) for balanced flavor and texture.
• Dice apples evenly to 1/2 inch so they cook through as the crumble browns.
• Let the caramel cool to a thick, ribboning consistency before drizzling so it sits on the crumble instead of soaking in.
• Press the shortbread firmly and par-bake; this prevents a soggy base under juicy apples.
• For clean slices, chill the baked slab 30 minutes after cooling, then cut with a hot, dry knife.

Variations

• Bourbon Salted Caramel: Stir 1 tbsp bourbon into the finished caramel with the vanilla.
• Pecan Streusel: Add 1/2 cup chopped pecans to the crumble for extra crunch and nuttiness.
• Gluten-Free: Use a cup-for-cup gluten-free flour blend in both base and crumble, and certified gluten-free oats.
• 9×13 Pan: Double every ingredient. Bake the base 15–17 minutes and the assembled bars 40–48 minutes.

Storage & Make-Ahead

Cool completely before storing. Keep bars covered at room temperature up to 1 day or refrigerate up to 5 days. Freeze well-wrapped bars (without caramel drizzle) up to 3 months; thaw overnight in the fridge and warm briefly at room temp, then drizzle with freshly warmed caramel before serving. The caramel sauce keeps in the fridge for 2 weeks; rewarm gently until pourable.

Nutrition (per serving)

Approximate per bar (1 of 16): 420 calories; 23 g fat (14 g saturated); 54 g carbohydrates; 2 g fiber; 4 g protein; 160 mg sodium. Estimates will vary with brands and drizzle amounts.