How do you softer malted milk powder that has hardened?

To soften hardened malted milk powder, you can try breaking up clumps with a fork or spoon. Alternatively, you can place the powder in a resealable plastic bag and gently crush it with a rolling pin or mallet to break up hardened chunks. Another option is to transfer the powder to a food processor and pulse it a few times to break up the hardened texture.