Heat oven to 350°F. Line a 9×13-inch pan with parchment, leaving overhang.
Whisk flour, oats, brown sugar, baking soda, and fine salt in a large bowl.
Stir in melted butter and vanilla until the mixture turns sandy and clumps when squeezed.
Press about two-thirds of the crumb mixture firmly into the pan to form an even base.
Par-bake the crust for 10 minutes until lightly set.
Melt caramels with heavy cream in a saucepan over low heat, stirring, until smooth and pourable.
Scatter chocolate chips and pecans over the warm crust.
Pour the warm caramel evenly over the chocolate layer.
Crumble the remaining oat mixture over the top, leaving some gaps for caramel to peek through.
Bake 15–18 minutes, until golden and bubbling at the edges. Cool completely, then chill 30 minutes for neat slices. Sprinkle flaky salt, slice, and serve.
Notes
Variation: Swap in dark chocolate chips and add a pinch of espresso powder to the caramel for a mocha twist. Storage: Keep bars covered at room temperature for up to 3 days, or refrigerate for a firmer texture. Freeze tightly wrapped for up to 2 months.This recipe is an original creation inspired by classic Easy Chocolate Chip Caramel Bars flavors. All ingredient ratios and instructions are independently developed.