Combine first 4 ingredients; add biscuit mix and beat vigorously for 30 seconds.
Stir in marmalade and pecans.
Grease muffin pans or line with paper bake cups; fill 2/3 full.
Combine sugar, flour, cinnamon, and nutmeg; cut in butter till crumbly.
Sprinkle over batter.
Bake at 400° for 20 to 25 minutes.