Cut the brioche slices in half on the diagonal. Place brioche slices on a baking sheet and bake for 5 minutes. Flip brioche slices and bake for 4 minutes, or until lightly toasted on both sides.
In a wide bowl, whisk the egg.
Combine half and half, strawberries, sugar, and vanilla paste in a blender and blend just until smooth. Add the mixture to the egg and whisk to combine.
Heat a skillet on medium heat. Add one teaspoon of butter, or enough to lightly coat the bottom of a pan.
Dip half of the brioche slices in the egg mixture, and place in the pan. Cook for 2-3 minutes or until lightly browned. Add another teaspoon of butter, flip, and cook for 2-3 minutes.
Sprinkle the top-facing side of the brioche with 1/4 teaspoon of the strawberry sugar mixture. Flip and cook for 15-30 seconds, or until the sugar mixture starts to melt. Sprinkle the other side with cinnamon sugar mixture. Flip and cook 15-30 seconds. Remove from the pan and repeat with the remaining bread.
Serve with strawberry whipped cream, strawberry syrup, and fresh berries.