3 1/2 cups (or more) water
1 3/4 cups steel-cut oats
1/2 teaspoon salt
1/4 cup whipping cream
2 tablespoons pure maple syrup plus additional for serving
1 tablespoon (packed) dark brown sugar
1 tablespoon vanilla extract
Melted butter (for brushing)
2 pints strawberries, hulled, sliced
Butter 13x9x2-inch metal baking pan or rimmed baking sheet. Bring 3 1/2 cups water to boil in heavy medium saucepan. Add oats and salt. Bring to boil; reduce heat to medium-low, cover, and simmer until oatmeal is tender but still firm to bite, stirring often and adding more water by 1/4 cupfuls if too thick, about 30 minutes.
Cut chilled oatmeal into squares or triangles. Heat griddle or heavy nonstick skillet over medium heat. Brush griddle with melted butter.