Apple cinnamon muffins

Name: Apple cinnamon muffins
Cuisine: American
Ingredients: 1 cup + 1/3 cup (150 g) tigernut flour (if you are not on AIP nor nut intolerant, you can use almond flour instead of tigernut flour); 1/4 cup + 1Tbsp (50g) arrowroot (see notes below for substitutions); 1 cup (240 g) unsweetened apple sauce; 1.5 cups (180g) apple (once peeled and seeds removed which makes about 2 apples); 2 Tbsp maple syrup (See notes if you want to reduce quantity); 1 tsp baking soda; 1 Tbsp lemon juice (or apple cider vinegar); 1 tsp cinnamon (see notes for other spices options); 1/4 cup (60 ml) oil of your choice (extra virgin olive oil, coconut oil…)