milk: 1 cup， water: 1 cup+1/4 cup， egg: 2， flour: 1 cup (~150g)， butter: 2 tbsp， salt: to taste
1Put all the ingredients in a food processor, and turn it on for 1 min
2Let it sit overnight
3In medium to high heat, spread 1/4 cup batter in a pan
4Each side for 2 minutes