whisk ¾ cup whole milk, ½ cup canned pumpkin puree, 3 large eggs, 2 teaspoon pumpkin pie spice, 1 teaspoon vanilla extract, and ¼ teaspoon sea salt in a shallow baking dish until fully combined.
melt 1 teaspoon of butter at a time in a large non-stick skillet, set over medium-high heat.
dip 3 – 4 pieces of croissant toast into the mixture. Holding the bread with tongs, drain any excess egg mixture. Cook bread for 3-4 minutes on each side until golden brown but still soft in the middle. Lay the cooked bread on a 13x11 buttered baking pan.
The top half of the cooked bread with ¼ cup of pumpkin filling. Spread the filling evenly over the toast. Lay the second piece of toast on top of the filling.
Add ¼-1/2 cup crumb topping in a pile on top of the toast. Arranging the stuffed toasts ½ inch apart for even cooking.
Bake at 350F. for 30-35