Combine sugar, cocoa, butter and milk in saucepan. Bring to a gentle boil over medium heat. Add vanilla. Remove from heat and stir in coconut and oats, and ground flax, if using. Drop by teaspoonfuls onto waxed paper-lined cookie sheets. Chill until set. Store in airtight container at room temperature or in the fridge.
Recipe by Hidden Ponies at https://hiddenponies.com/2011/10/chocolate-oat-delights/