@Andyroo

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  colors: [
    'red',
    'green',
    'blue'
  ],
  
  selectedColor: null,
  
  actions: {
    selectColor(color) {
      console.log(color);
      this.set('selectedColor', color);
    }
  }
});

templates.application.hbs

Colors:
<select onchange={{action 'selectColor' value='target.value'}}>
	{{#each colors as |color|}}
  	<option value={{color}}>{{color}}</option>
  {{/each}}
</select>

Selected: {{selectedColor}}

twiddle.json

{
  "version": "0.8.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}