Croissant French Toast

Name: Croissant French Toast
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Cuisine: European, Mediterranean, French
Ingredients: 1 package croissant toast (about 10 slices) or 6 large croissants, halved; 2 C heavy cream; 2 large egg yolks; 3 tbsp salted butter, as needed; 3 tbsp vegetable oil, as needed; 2 tbsp all-purpose flour; 1 tbsp powdered sugar; 1 1/2 tsp granulated sugar; 2 tsp ground cinnamon; 1 tsp vanilla extract; 1/2 tsp vanilla bean paste