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Brown Butter Maple Nut & Thyme Crunch Bara

A cozy, woodland-inspired twist on classic marshmallow crunch bars—deeply nutty brown butter, fragrant thyme, maple sweetness, and toasted grains for a rustic holiday bite.
Prep Time15 minutes
Cook Time6 minutes
Course: Appetizer, breads, Dessert, Side Dish, Snack
Cuisine: American
Keyword: brown butter, crunch bars, fall herbs, maple nut, rice crispies, rice krispie treats, thyme, winter dessert
Servings: 6 bars

Equipment

  • Oven
  • Baking Sheet
  • Parchment Paper
  • medium sized saucepan or pot
  • wooden spoon
  • measuring cups & spoons
  • small baking dish

Ingredients

Toasted Crunch Mix

  • 2 cup rice krispies
  • ¼ cup rolled oats
  • ½ cup mixed nuts I used pecans and almonds, roughly chopped

Brown Butter Thyme Base

  • ¼ cup unsalted butter
  • 2-3 sprigs fresh thyme
  • 1 pinch sea salt

Marshmallow Mixture

  • 1 cup mini mashmallows around half of a 5 oz bag
  • ½ tsp vanilla extract
  • 1 tbsp maple syrup
  • 1 pinch cinnamon and nutmeg optional

Instructions

  • Preheat convection oven to 300°F (150°C). Line a baking sheet with parchment.
  • Spread Rice Krispies, oats, and nuts in separate thin layers. Toast for 6–8 minutes, stirring halfway, until lightly golden and fragrant. Watch closely—Rice Krispies brown quickly. Cool completely.
  • In a medium pot over medium heat, melt the butter. Add thyme sprigs and cook until the butter turns golden brown and smells nutty, 4–6 minutes.
  • Remove thyme sprigs (a few loose leaves are fine). Stir in a pinch of salt.
  • Reduce heat to medium-low. Add marshmallows, vanilla, maple syrup, and optional spices. Stir gently until smooth and glossy.
  • Remove from heat and gently fold in the toasted Rice Krispies, oats, and nuts until evenly coated.
  • Line a small pan with parchment. Transfer mixture and press lightly with a spatula or buttered hands—do not compact or bars will be dense.
  • Sprinkle with flaky sea salt, extra candied pecans, and a pinch of thyme leaves. Let cool for 30 minutes, then slice into bars.