Combine sugar, cream, corn syrup, butter, and salt in a heavy saucepan and cook over low heat until sugar is dissolved, stirring constantly. Cook to soft ball stage (238 degrees F on candy thermometer), stirring occasionally. Remove from heat, and add maple flavoring and vanilla. Pour into a large bowl and beat with a mixer until creamy. Add pecans. Drop by teaspoonsful onto buttered waxed paper. Let cool for 1 hour. Store in an airtight container between layers of waxed paper.
Recipe courtesy of Robbin Gourley's Sugar Pie and Jelly Roll (Algonquin, 2000)