Line a jelly-roll pan with several layers of paper towels. Spread spelt out into a thin layer on paper towels. Let stand 1 to 2 hours to dry out surface moisture, stirring grains occasionally.
Heat oil in a large Dutch oven over high heat until a thermometer submerged in oil registers 375°. (Do not use a smaller pot; moisture in the grains will cause the oil to bubble up vigorously.) Add 1/2 cup spelt to hot oil; cook 4 to 5 minutes or until grains are browned and crisp. (Maintain oil temperature at 375°, and fry in small batches.) Remove fried spelt from pan with a slotted spoon; drain on paper towels. Repeat with remaining spelt, 1/2 cup at a time.