Method: In a pan - heat butter when it starts to melt add onion and fry till slightly golden then add carrots and saute till raw smell leaves. Now add maida and give a quick saute then add remaining 1/2 tbsp butter.Now add milk and keep stirring. Keep stirring until the mixture becomes slight thick and creamy.Cook in low flame. Add required salt. Once the sauce is thick in spreadable consistency add coriander and mint leaves, then oregano and pepper powder.Finally Spread eveenly on bread on both the sides and serve with fresh soft bread