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Plate of fudgy Ninja Crispi brownies topped with chocolate frosting and sparkles

How to Make Boxed Brownie Mix in Air Fryer Oven

4.29 from 7 votes
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 9 servings

Description

Rich, fudgy Ninja Crispi brownies with a glossy, crackly top — made in one small batch on the ReCrisp setting. No full oven required.

Ingredients 

  • 2 eggs, plus 1 egg yolk
  • 110 g unsalted butter
  • 60 g dark chocolate, roughly chopped
  • 40 g cocoa powder, sifted
  • 120 g caster sugar
  • 80 g brown sugar
  • tsp vanilla extract
  • ½ tsp espresso powder, optional
  • ½ tsp salt
  • ½ tsp baking powder
  • 90 g plain flour
  • 1 cup chocolate chips
  • Flaky sea salt, for the top

Instructions

  • Brown the butter in a saucepan over medium heat until golden and nutty, 3–4 minutes. Remove from heat.
  • Stir the chopped dark chocolate into the warm butter until glossy, then stir in both sugars. Cool for 2 minutes.
  • In a separate bowl, whisk the eggs, extra yolk, vanilla, espresso powder, salt, and baking powder until combined.
  • Pour the chocolate-butter mixture into the eggs and whisk hard for 1 minute, until smooth and slightly thickened.
  • Sift in the cocoa and flour; fold gently until just combined. Do not overmix.
  • Fold in the chocolate chips.
  • Pour into a lined tin that fits inside the Ninja Crispi; scatter flaky salt on top.
  • Bake on the ReCrisp setting (170°C) for 22–25 minutes, until a skewer shows a few moist crumbs.
  • Cool fully before slicing. For clean squares, chill 20 minutes and wipe the knife between cuts.

Equipment

  • Ninja Crispi Air Fryer
  • Baking Pan
  • Cooking Spray

Nutrition

Serving: 1ServingCalories: 375kcalCarbohydrates: 48gProtein: 4gFat: 20gSaturated Fat: 12gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.4gCholesterol: 63mgSodium: 173mgPotassium: 215mgFiber: 3gSugar: 35gVitamin A: 361IUCalcium: 56mgIron: 2mg