Preheat oven to 350 degrees F. Grease two doughnut pans with cooking spray and set aside.

To make the vanilla batter, in a large bowl, whisk together the flour, sugar, baking powder, and salt. In a separate bowl, whisk together the butter, egg, buttermilk, and vanilla. Add the wet ingredients to the dry ingredients and fold with a rubber spatula until just combined. Do not over-mix. Transfer the batter to a disposable piping bag and set aside.

To make the chocolate batter, in a large bowl, whisk together the cocoa powder, flour, brown sugar, baking powder, baking soda, espresso powder and salt. In a separate bowl, whisk together the egg, buttermilk, vanilla, vinegar, and butter until smooth. Add the wet ingredients to the dry ingredients and fold until just combined. Add the chocolate chips and stir until evenly incorporated. Transfer the batter to a disposable piping bag.

Pipe out the vanilla batter into the prepared doughnut pans, halfway around the cavity. Then pipe out the chocolate batter on the other half. Give the pans a few taps on the counter to dislodge any air bubbles and to even them out a bit.

Bake until lightly golden brown and a toothpick, inserted in the middle, comes out clean, about 15 to 18 minutes. Remove from the oven and allow to cool for about 5 minutes in the pan before inverting onto a wire rack to cool completely.

To make the glaze, add the strawberries, water, sugar and salt in a blender and blend until smooth. Transfer to a bowl, through a fine mesh sieve to remove seeds. In a large bowl, whisk together the sugar, butter and as much of the strawberry juice as needed to create a somewhat thick glaze, but pourable glaze.

Once the doughnuts have cooled completely, dip the tops of each into the strawberry glaze and while they're still wet, sprinkle the top with crushed up dried strawberries, chocolate curls and sprinkles. Return to the wire rack and allow to set before eating. Serve right away. Leftovers can be wrapped in plastic and stored at room temperature for up to 2 days. Enjoy!