keep getting bummer "ingredients" not defined. What am I missing here?

from flask import Flask

app = Flask(__name__)
app.register_blueprint(ingredients_api)
app.register_blueprint(recipes_api)



if __name__ == '__main__':
    app.run()

from flask.ext.restful import Resource, Api
from flask import Blueprint

import models


class IngredientList(Resource):
    def get(self):
        return 'IngredientList'


class Ingredient(Resource):
    def get(self, id):
        return 'Ingredient'



ingredients_api = Blueprint('resources.ingredients',__name__)
api = Api(ingredients_api)
api.add_resource(
    IngredientList,
    '/api/v1/ingredients',
    endpoint='ingredients'
)
api.add_resource(
    Ingredient,
    '/api/v1/ingredients/<int:id>',
    endpoint='ingredient'
)

from flask.ext.restful import Resource, Api
from flask import Blueprint

import models


class RecipeList(Resource):
    def get(self):
        return 'RecipeList'


class Recipe(Resource):
    def get(self, id):
        return 'Recipe'



recipes_api = Blueprint('resources.recipes',__name__)   
api = Api(recipes_api)
api.add_resource(
    RecipeList,
    '/api/v1/recipes',
    endpoint='recipes'
)
api.add_resource(
    Recipe,
    '/api/v1/recipes/<int:id>',
    endpoint='recipe'
)