diff --git a/packages/runtime/src/templates/edge-shared/utils.ts b/packages/runtime/src/templates/edge-shared/utils.ts
index 1dc9153cc8..98980c1b7b 100644
--- a/packages/runtime/src/templates/edge-shared/utils.ts
+++ b/packages/runtime/src/templates/edge-shared/utils.ts
@@ -31,8 +31,13 @@ export const addMiddlewareHeaders = async (
   // We need to await the response to get the origin headers, then we can add the ones from middleware.
   const res = await originResponse
   const response = new Response(res.body, res)
+  const originCookies = response.headers.get('set-cookie')
   middlewareResponse.headers.forEach((value, key) => {
     response.headers.set(key, value)
+    // Append origin cookies after middleware cookies
+    if (key === 'set-cookie' && originCookies) {
+      response.headers.append(key, originCookies)
+    }
   })
   return response
 }
diff --git a/test/e2e/modified-tests/skip-trailing-slash-redirect/index.test.ts b/test/e2e/modified-tests/skip-trailing-slash-redirect/index.test.ts
index 937b9e2a63..c9d60ce5a7 100644
--- a/test/e2e/modified-tests/skip-trailing-slash-redirect/index.test.ts
+++ b/test/e2e/modified-tests/skip-trailing-slash-redirect/index.test.ts
@@ -47,16 +47,14 @@ describe('skip-trailing-slash-redirect', () => {
     expect(res.headers.get('x-from-middleware')).toBe('true')
     expect(await res.text()).toBe('hello from middleware')
   })
-  // NTL Skip
-  usuallySkip('should merge cookies from middleware and API routes correctly', async () => {
+  it('should merge cookies from middleware and API routes correctly', async () => {
     const res = await fetchViaHTTP(next.url, '/api/test-cookie', undefined, {
       redirect: 'manual',
     })
     expect(res.status).toBe(200)
     expect(res.headers.get('set-cookie')).toEqual('from-middleware=1; Path=/, hello=From API')
   })
-  // NTL Skip
-  usuallySkip('should merge cookies from middleware and edge API routes correctly', async () => {
+  it('should merge cookies from middleware and edge API routes correctly', async () => {
     const res = await fetchViaHTTP(next.url, '/api/test-cookie-edge', undefined, {
       redirect: 'manual',
     })