For the strawberry-rhubarb compote:
In large saucepan, toss together strawberries, rhubarb, sugar and vanilla. Place over medium heat and cook, stirring frequently until mixture is thickened and reduced, about 12-15 minutes.
Spread 2 tablespoons of butter onto slices of bread. Spoon compote on 4 of slices, on top of butter.
In large skillet or fry pan, heat remaining butter over medium heat.
In wide shallow bowl or pan whisk together eggs and milk. Dip compote-topped slices into egg mixture (but do not submerge it) and transfer to hot skillet. Dip remaining slices butter-side up into egg mixture and place butter-side down on top of compote-topped slices. Cook on each side 2-3 minutes until golden brown.
Serve immediately with whipped cream, additional strawberries and powdered sugar, if desired
Calories: 681kcal, Carbohydrates: 108g, Protein: 22g, Fat: 19g, Saturated Fat: 10g, Cholesterol: 157mg, Sodium: 827mg, Potassium: 556mg, Fiber: 6g, Sugar: 35g, Vitamin A: 664IU, Vitamin C: 47mg, Calcium: 194mg, Iron: 6mg