Garnet Yams with Blis Maple Syrup and Maple-Sugar Streusel

Ingredients

• 1 cup all purpose flour 
• 1 tablespoon apple cider vinegar 
• 0.8 teaspoon pepper black freshly ground
• 1 teaspoon coarse kosher salt 
• 0.3 cup brown sugar packed ()
• 0.8 teaspoon ground cinnamon 
• 0.5 cup maple sugar (scant 3 ounces)
• 0.3 cup blis maple syrup pure
• 6 tablespoons butter unsalted melted ()
• 3.5 pounds slender garnet yams (red-skinned sweet potatoes;)

Equipment

• bowl
• sauce pan
• oven
• baking pan
• aluminum foil

Directions

1. Butter 13x9x2-inch glass bakingdish. Peel yams; cut 1 inch off ends. Coarselygrate enough of yam ends to measure 1/2 cup;set aside for streusel. Discard remainingends.
2. Cut remaining whole yams into1/3-inch-thick rounds. Arrange yam rounds in4 overlapping lengthwise rows in preparedbaking dish.
3. Bring 1/2 cup water, maple syrup, butter,and cider vinegar to boil in small saucepan.Stir in 1 teaspoon coarse salt and 3/4 teaspoonpepper.
4. Pour maple syrup mixture overyams. Cover baking dish tightly with foil.
5. Mix first 4 ingredientsin small bowl.
6. Add melted butter and rub inwith fingertips until moist clumps form.
7. Mix in reserved 1/2 cup grated yams.DO AHEAD: Yams and streusel can bemade 6 hours ahead. Cover separatelyand refrigerate.
8. Let yams stand at roomtemperature 1 hour before baking.
9. Preheat oven to 375°F.
10. Bake yamscovered until almost tender, about 40minutes. Increase oven temperature to400°F.
11. Sprinkle streusel over and bakeuncovered until yams are very tender andstreusel is golden and slightly crisp, about35 minutes longer.
12. Serve warm.
13. * Available at some supermarkets andat specialty foods stores and naturalfoods stores.