Hi mummy, it's not advisable to mix milk & cereal for bottle feed. you can spoon feed cereal mix w milk. For me, my boy takes 6 scoops of milk so i start with 2 scoops of cereal + 1 fm (in bowl) then after 2 hours i give the balance 4 scoops of milk (bottle feed). He is on 4 scoops of cereal + 3 FM now a month after start w cereal.
I checked w doc. If he dont want too much bottle milk i can add the FM into the cereal. So he do not lose out the nutrients