Building the pawns a'la Capablanca, on the color of the missing bishop, is the quintessence of the line.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. g1f3  4... b4c3 A pretty straightforward approach, but relatively rare. Although, how can the doubling of the pawns can be a rare idea in the Nimzo-Indian $2 5. b2c3 