Oreo Stuffed French Toast

Name: Oreo Stuffed French Toast
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Cuisine: European, Mediterranean, French
Ingredients: 1 1/2 C heavy whipping cream; ½ C powdered sugar; 2 Tbsp cornstarch; 2 Tbsp Oreos; 1/2 Tsp vanilla extract; 1 C Mascarpone; 1/3 C heavy cream; 1/4 C Oreos; 2 Tbsp powdered sugar; 1 brioche bread (cut into 4 thick slices); 1 1/2 C whole milk; 2/3 C self-rising flour; 1/4 C powdered sugar; 3 large egg yolks; 1 Tsp vanilla extract; 1 Tsp granulated sugar; vegetable oil