Step 1

Preheat oven to 350F. Line an 8x8 baking dish with parchment paper.

Step 2

Heat a medium frying pan over medium-low heat. Melt butter, add apples and cook, stirring occasionally until very soft and caramelized, about 12-15 minutes. Remove from heat and stir in 1/4 tsp cinnamon.

Step 3

Meanwhile, in a large bowl, whisk melted butter with brown sugar until combine. Whisk in egg and vanilla extract.

Step 4

Using a spatula, stir in flour, salt, remaining cinnamon and nutmeg. Fold in apple slices.

Step 5

Pour batter into prepared pan. Smooth the top and bang the bottom on the counter to ensure batter is even in the pan.

Step 6

Bake in the centre of the oven for 20-25 minutes. Remove from oven, allow to cool for 15 minutes, then flip and cool completely on a wire rack. Cut into 16 squares.