These bars are a decadent blend of nutty brown butter, sweet toffee, malt powder, and chocolate chips, all tied together with a delicate finishing touch of sea salt flakes and additional chocolate chunks.
Preheat the oven to 325F. Line a 9×13″ rectangular baking pan with parchment paper, leaving a 1” overhang.
In a bowl, whisk together the flour, Hoosier Hill Malted Milk Powder, sea salt, baking powder, and baking soda. Set aside to add the eggs and sugars to another larger bowl. Whisk to combine. Add in the browned butter and vanilla bean paste, whisking to combine.
Add half of the dry ingredients and, switching to a sturdy spatula, mix the dry ingredients with the wet until barely combined. Add the rest of the dry ingredients and mix until just combined (no streaks of flour remain).
Mix the chocolate chips and chunks; remove 1/2 cup and set that aside. To the dough, pour the toffee bits and the remaining chocolates into the bowl (2 1/2 cups). Mix to combine.
Add the dough to the prepared pan, spreading it to an even thickness. Take the remaining chocolates and sprinkle them on top of the dough and sprinkle on the sea salt flakes (about 2-3 small pinches).
Bake for 30-35 minutes or until the tops are golden brown; the center looks set but not fully cooked. Do not overbake, as the bars will continue to bake in the pan while cooling on the counter. Allow to cool in the pan for at least 1 hour or until thoroughly cooled.
Slice and enjoy! Store any leftover cookies in an airtight container.