Bolo de banana super simples :d

Name: Bolo de banana super simples :d
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Yield: 6
Cuisine: Pt
Ingredients: 4 bananas bastante maduras; 150 g de farinha; 130 g de acucar; 2 ovos; margarina qb; canela qb